Multiply.-3.0(-10)
A. -13
B. -7
C. 13
D. 30
Answer: D
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Determine the vertex and the x-intercepts. Then sketch the graph.y = x2 + 2x
A. 
Vertex: (- 1, - 1);
x-intercepts: (0, 0) and (-2, 0)
B. 
Vertex: (1, 1);
x-intercepts: (0, 0) and (2, 0)
C. 
Vertex: (1, - 1);
x-intercepts: (0, 0) and (2, 0)
D. 
Vertex: (- 1, 1);
x-intercepts: (0, 0) and (-2, 0)
Find the unit tangent vector T and the principal unit normal vector N. r(t) = (ln(cos t) + 1)i + 3j + (7 + t )k, -?/2 < t < ?/2
A. T = (sin t)i + (cos t)k; N = (cos t)i - (sin t)k B. T = (-sin t)i + (cos t)k; N = (-cos t)i + (sin t)k C. T = (sin t)i - (cos t)k; N = (cos t)i - (sin t)k; D. T = (-sin t)i + (cos t)k; N = (-cos t)i - (sin t)k
Write the following in words.14.0045
A. Fourteen and forty-five hundred-thousandths B. Fourteen and forty-five ten-thousandths C. Fourteen and forty-five thousandths D. Fourteen and forty-five hundredths
Tell whether the triangles are similar or not similar.
A. Similar B. Not similar